Install libflext-pd0 by entering the following commands in the terminal:
sudo apt update sudo apt install libflext-pd0
Description:
Flext C++ external layer for Pd
Flext is a C++ layer for programming externals for Pure Data (Pd) as well as for the proprietary Max/MSP. It provides an object oriented abstraction layer to writing Pd objects.
Homepage: https://grrrr.org/research/software/flext/
Version: 0.6.0+git20161101.1.01318a94-3
Section: universe/libs